Tap or valve.



J. H. TRUESDELL.

TAP 0R VALVE.

APPLICATION-FILED FEB. 15. 19L).

Patented Mar. 14, 1916.-

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OLUMBKA PWOGRAPH 00.. WASHINGTON.

JAMES H. TRUESIDELL, 0F KINGSTON, ONTARIO, CANADA;

TAP OR VALVE.

Specification of Letters Patent. Patented BIal. 14;, 1916.

Application filed February 15, 1915. Serial No. 8,416.

To all whom it may concern:

Be it known that I, J AMES H. TRUnspnLL, a'subject of the King of England, residing at Kingston, in the county of Frontenac and Province of Ontario, Dominion of Canada,

have invented certain new and useful Improvements in Taps or Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates broadly to improvements in valves and more part cularly to those of the type in which the valve proper is closed by the pressure of fluid within the casing.

The object of the invention is to provide 7 a valve of this general character which will be very simple and inexpensive, yet which will possess a number of advantageous features and will therefore be very efficient in operation.

With this end in view, the invention resides in certain novel features of construction and combination hereinafter described and claimed.

In describing the invention, I shall refer to the accompanying drawing wherein like reference characters designate corresponding parts throughout the several views, and wherein:

Figure 1 is a central vertical long tudinal section through a valve constructed in accordance with my invention. Fig. 2 is an end view thereof with parts broken away and in section; and Fig. 3 is a. vertical trans verse section as seen along the plane of the line 33 of Fig. 1.

In this drawing constituting a part of the application, the numeral 1 designates a cylindrical valve casing whose receiving end is provided with screw threads 2 for the attachment of a supply pipe, while its delivery end 3 is turned downwardly and ex ternally threaded as seen at 4. In the present instance, the bore of the delivery end 3, is shown of less diameter than that of the casing proper, thereby providing an annular valve seat 5 between the latter and the delivery end 3, this seat preferably having a rounded rear face disposed toward the re ceiving end of the casing.

Formed in the inner curved side of the casing 1, and leading from the threads 2 to the seat 5, is a plurality of grooves 6 through which the fiuid may flow when the valve to be described is opened, said grooves forming a plurality of longitudinal guide ribs 7. It is between these ribs 7 that the valve proper 8 is mounted to slide, saidvalve being of cylindrical formation and being provided with a cavity 9 in its inner end, Having a threaded engagement with the center of the valve 8 and extending outwardly therefrom through an opening 9 in the front wall of the delivery end 3. is a reciprocable valve stem 10, the valve 8 being locked on the-inner end of said stem by the provision of a lock nut 11 between which and said valve, a packing ring or washer 12 is clamped, whereby contact of said washer with the curved rear face of the seat 5, will establish a find tight obstruction between the receiving and delivery ends of the casing.

As disclosed in Fig. 1, the outer end of the stem 10 projects into a cavity 13 which opens through the forward end of a boss 14 east integrally with the curved front wall of thedelivery end 3, said outer end being As clearly disclosed in Figs. 1 and 2. the

ears 16 straddle the reduced portion 19 of an upright lever 20, the lower end of this lever being bifurcated and straddling an ear 21 which is formed integrally with the delivery end 3 immediately below the boss 14. This ear 21 is provided with an elongated slot 22 which loosely receives a roller 23 mounted for rotation within the bifurcated lower end of the'lever 20.

IVith the parts constructed as. above described, it will be seen that inward movement of the lever 20 will force inwardly the stem 10, thus unseating the valve 8 and allowing the discharge of fluid through the delivery end 3, of the casing. During such inward movement of the lever, however, it will be evident that the roller 23 will travel within the slot 22, thus preventing any of the pivotal connections from binding.

When now, the lever 20 is released, the 110 water pressure in rear of the valve 8, tends to force the same forwardly, thus disposing it in contact with the seat 5 and again cutting off the supply of water. It will be evident, however, that the coiled spring 17 assists to a certain extent in returning the valve to its normal position.

In order that the lever 20 may be more readily moved inwardly, an upright rigid hand hold 24 is preferably formed integrally with the upper side of the casing, this hand hold rising from the casing in substantially parallel relation to the upper end of said lever. By this construction, it will be evident that when the upper end of this lever and the hand hold 24 are grasped, the former may be readily forced inwardly.

From the foregoing description, taken in connection with the accompanying drawing, it will be evident that although a very simple construction has been provided for carrying out the object of the invention, the valve will be of special advantage on water systems where quick operation and prompt, automatic and complete shutting off of the water is required, Needless to say, the valve does not depend upon the action of the spring to prevent leakage, but upon the pressure of the confined fluid, it being therefore correspondingly effective and durable. Ample space is provided for thefluid to flow around the valve proper, yet'the ribs above described prevent undue vibration.

In case repairs are necessary, the entire valve is removed from the service pipe, and a screw driver is inserted in the receiving end of the casing l and is used for rotating,

the stem 10 and the valve 8 carried thereby,

it being evident that sufiicientrotation of.

these parts will detach the stem from the cap member 15, thus allowing the valve proper to be removed, repaired and replaced.

I am aware that the principle of opening,

a recessed boss with which said opening communicates, a valve seat between'the casing proper and thedelivery end thereof and facing the former, guide ribs disposed. in sa1d casingproper, a valve shdably mounted between the ribs and bearing normally against the seat, a stem extending: outwardly from the valve through the aforesaid opening and into the recess of the aforesaid boss, a cap member threaded on the outer endof the stem, a packing ring surrounding the stem and bearingragainsti the inner wall of .the recess of the boss, a

coiled spring surrounding the stem and 'in-1 terposed between said packing ring and the aforesaid cap member, an upright lever, pivoted between its ends to said cap member: and having a bifurcated lower end, a roller carried by said end, and a slotted ear formed integrally with the delivery end of the cas-: ing, the roller being received by the slot in the ear,

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JAMES H. TRUESDELL.

WVitnesses:

GEO. SMYTHE, EMILY E. BILLING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner or Patents,-

Washington, D. C. i 

